Circuitry Assessment and Reinforcement Training Effects on Recovery (CARTER)

September 11, 2023 updated by: Johns Hopkins University

Circuitry Assessment and Reinforcement Training Effects on Recovery (CARTER)

This study investigates if electroencephalography (EEG) neurofeedback training is more beneficial than sham feedback training for the improvement of communication, anxiety, and sleep quality in individuals with aphasia. Half of the participants will receive active EEG neurofeedback sessions first, followed by sham feedback sessions in a crossover design. The other half of participants will undergo sham feedback sessions first, followed by active neurofeedback.

Study Overview

Detailed Description

Neurofeedback, a form of biofeedback, provides a visual and/or audio representation of an individual's neural electrical activity from live EEG recording. Using operant conditioning principles, individuals are trained to increase or reduce patterns of brainwave activity to modify behavior and performance. Although neurofeedback has not yet been investigated as a treatment for aphasia or other communication deficits due to stroke or neurodegenerative disease, it may be effective. Previous studies have observed improvement in cognitive and behavioral measures in those with conditions such as Attention Deficit Disorder and Attention Deficit Hyperactivity Disorder. Furthermore, it has been associated with reduced anxiety and sleep disruption, which both exacerbate language and communication impairments. Research is needed to determine if neurofeedback may be an effective treatment for language disorders such as PPA and post-stroke communication disorders.

It is possible that EEG neurofeedback, which focuses on improving abnormal brainwave patterns, could provide certain therapeutic benefits to individuals with PPA or post-stroke aphasia, either by directly affecting neural networks that underlie language, or more generally by reducing anxiety and inattention through behavioral conditioning. Reduction of anxiety in neurological diseases can be beneficial not only for functional performance but also sleep duration and quality.

Study Type

Interventional

Enrollment (Estimated)

80

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Maryland
      • Baltimore, Maryland, United States, 21287
        • Johns Hopkins School of Medicine

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

16 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Diagnosis of PPA or aphasia secondary to stroke and presence of naming deficits with confirmation of diagnosis by neurologist
  • Capable of giving informed consent or indicating another to provide informed consent
  • Age 18 or older.
  • If aphasia is secondary to stroke, the stroke must have occurred between 6 months and 5 years prior to enrollment in the study.

Exclusion Criteria:

  • Lack of English proficiency
  • Not medically stable
  • Picture naming accuracy above 80% on the Philadelphia Naming Test (PNT)
  • Prior history of neurologic disease affecting the brain (e.g., brain tumor, multiple sclerosis, traumatic brain injury) other than stroke or PPA and its underlying neurological pathologies: Alzheimer's Disease, Frontotemporal Lobar Degeneration or Dementia with Lewy bodies
  • Prior history of severe psychiatric illness, developmental disorders or intellectual disability (e.g., PTSD, major depression, bipolar disorder, schizophrenia, obsessive compulsive disorder (OCD), autism spectrum disorders)
  • Uncorrected severe visual loss or hearing loss by self-report and medical records

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: Quadruple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Active EEG Neurofeedback
15 sessions of active EEG neurofeedback at a frequency of 3-5 sessions per week for a duration of 3-5 weeks.
Active EEG neurofeedback
Sham Comparator: Sham Feedback
15 sessions of sham neurofeedback at a frequency of 3-5 sessions per week for a duration of 3-5 weeks.
Sham EEG feedback sessions identical to active sessions except that the feedback given to the participant will not be based on the individual's live EEG activity.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in Number of content units expressed in the Picture Description Test
Time Frame: Baseline, 1 week following each intervention period and 8 weeks following both intervention periods
Change in Number of content units expressed by the participant when describing what is seen in a picture.
Baseline, 1 week following each intervention period and 8 weeks following both intervention periods

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in number of items correctly named on the Philadelphia Naming Test
Time Frame: Baseline, 1 week following each intervention period and 8 weeks following both intervention periods
Change in number of items correctly named on a behavioral picture naming assessment.
Baseline, 1 week following each intervention period and 8 weeks following both intervention periods
Change in Controlled Oral Word Association test (COWA) score
Time Frame: Baseline, 1 week following each intervention period and 8 weeks following both intervention periods
This is a measure of attention, executive function, and word-retrieval. COWA scores range from 0 to infinity. Lower scores represent more language impairment.
Baseline, 1 week following each intervention period and 8 weeks following both intervention periods
Change in quality of sleep as assessed by the Pittsburgh Sleep Quality Index (PSQI)
Time Frame: Baseline, 1 week following each intervention period and 8 weeks following both intervention periods
Change in quality of sleep measured with The Pittsburgh Sleep Quality Index (PSQI). This has 7 items with each item scored from 0 to 3. Overall score ranges from 0 to 21 with higher scores representing poor sleep quality.
Baseline, 1 week following each intervention period and 8 weeks following both intervention periods
Change in anxiety as assessed by the State Trait Anxiety Inventory (STAI)
Time Frame: Baseline, 1 week following each intervention period and 8 weeks following both intervention periods
Change in anxiety measured with State Trait Anxiety Inventory. This is a 40-item questionnaire scored on a 4 point likert scale (1-4). Overall score ranges from 40 to 160 with higher scores representing greater anxiety.
Baseline, 1 week following each intervention period and 8 weeks following both intervention periods
Change in Sleep Medication Dose
Time Frame: Baseline, 1 week following each intervention period and 8 weeks following both intervention periods
Change in dose of sleep medication.
Baseline, 1 week following each intervention period and 8 weeks following both intervention periods
Change in Sleep Medication Frequency
Time Frame: Baseline, 1 week following each intervention period and 8 weeks following both intervention periods
Change in frequency of sleep medication.
Baseline, 1 week following each intervention period and 8 weeks following both intervention periods
Change in absolute power on EEG
Time Frame: Baseline, 1 week following each intervention period and 8 weeks following both intervention periods
Measurement of brainwave activity (absolute power in microvolts) in each frequency band (alpha, beta, theta, delta, gamma) on Quantitative EEG (qEEG).
Baseline, 1 week following each intervention period and 8 weeks following both intervention periods
Change in peak amplitude frequency on EEG
Time Frame: Baseline, 1 week following each intervention period and 8 weeks following both intervention periods
Measurement of brainwave activity (peak amplitude frequency in hertz) in each frequency band (alpha, beta, theta, delta, gamma) on qEEG.
Baseline, 1 week following each intervention period and 8 weeks following both intervention periods
Change in EEG absolute power z-scores
Time Frame: Baseline, 1 week following each intervention period and 8 weeks following both intervention periods
Comparison of z-scores for absolute power in each of the frequency bands (alpha, beta, theta, delta, gamma) pre- and post-interventions.
Baseline, 1 week following each intervention period and 8 weeks following both intervention periods
Change in EEG peak amplitude frequency z-scores
Time Frame: Baseline, 1 week following each intervention period and 8 weeks following both intervention periods
Comparison of z-scores for peak amplitude frequency in each of the frequency bands (alpha, beta, theta, delta, gamma) pre- and post-interventions.
Baseline, 1 week following each intervention period and 8 weeks following both intervention periods
Change in EEG coherence z-scores
Time Frame: Baseline, 1 week following each intervention period and 8 weeks following both intervention periods
Comparison of z-scores for coherence between EEG sites in each of the frequency bands (alpha, beta, theta, delta, gamma).
Baseline, 1 week following each intervention period and 8 weeks following both intervention periods

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Argye E Hillis, MD, MA, Johns Hopkins School of Medicine

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

September 23, 2020

Primary Completion (Estimated)

September 1, 2025

Study Completion (Estimated)

September 1, 2025

Study Registration Dates

First Submitted

February 27, 2020

First Submitted That Met QC Criteria

February 27, 2020

First Posted (Actual)

March 2, 2020

Study Record Updates

Last Update Posted (Actual)

September 13, 2023

Last Update Submitted That Met QC Criteria

September 11, 2023

Last Verified

September 1, 2023

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

Yes

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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